Merge pull request #242 from nigelhp/assert-arg-order

Invoke JUnit assertEquals with Argument Order (expected, actual)

exercises/etl/src/test/java/EtlTest.java

         };
         expected = Collections.unmodifiableMap(expected);
 
-        assertEquals(etl.transform(old), expected);
+        assertEquals(expected, etl.transform(old));
     }
 
     @Test
         };
         expected = Collections.unmodifiableMap(expected);
 
-        assertEquals(etl.transform(old), expected);
+        assertEquals(expected, etl.transform(old));
     }
 
     @Test
         };
         expected = Collections.unmodifiableMap(expected);
 
-        assertEquals(etl.transform(old), expected);
+        assertEquals(expected, etl.transform(old));
     }
 
     @Test
         };
         expected = Collections.unmodifiableMap(expected);
 
-        assertEquals(etl.transform(old), expected);
+        assertEquals(expected, etl.transform(old));
     }
 }